A133722
formatted as a simple table:
n
a(n)
1
0
2
0
3
1
4
1
5
1
6
1
7
7
8
3
9
1
10
25
11
6
12
1
13
65
14
10
15
1
16
140
17
15
18
1
19
266
20
21
[0,0,1,1,1,1,7,3,1,25,6,1,65,10,1,140,15,1,266,21]
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Maintained by
N. J. A. Sloane
(
njas@research.att.com
)
Last modified December 15 00:47 EST 2009. Contains 170825 sequences.
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